128354107 has 4 divisors (see below), whose sum is σ = 146690416. Its totient is φ = 110017800.

The previous prime is 128354069. The next prime is 128354123. The reversal of 128354107 is 701453821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128354107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128354507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9168144 + ... + 9168157.

It is an arithmetic number, because the mean of its divisors is an integer number (36672604).

Almost surely, 2^128354107 is an apocalyptic number.

128354107 is a deficient number, since it is larger than the sum of its proper divisors (18336309).

128354107 is an equidigital number, since it uses as much as digits as its factorization.

128354107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18336308.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 128354107 is about 11329.3471568312. The cubic root of 128354107 is about 504.4327283730.

The spelling of 128354107 in words is "one hundred twenty-eight million, three hundred fifty-four thousand, one hundred seven".